Zobrazeno 1 - 10
of 181
pro vyhledávání: '"V. I. Dulenko"'
Publikováno v:
Scopus-Elsevier
ResearcherID
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Reaction of 2-acyl-6-methylbenzo[b]furan-3-acetic acids and their derivatives such as amides and esters with hydrazine does not give expected 1-alkyl-5H-benzofuro[2,3-e]diazepin-4-ones ones but results in 2-amino-7-methyl-2H-benzo[4,5]furo[2,3-c]pyri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e66ab72d448379bf900797cf9493bdc
https://doi.org/10.1002/jhet.5570420510
https://doi.org/10.1002/jhet.5570420510
Publikováno v:
Chemistry of Heterocyclic Compounds. 41:379-386
Condensation of hetarene carboxaldehydes with phthalide gave 2-(3-hydroxy-1-oxoinden-2-yl)benzo[b]furan and 2-(3-hydroxy-1-oxoinden-2-yl)-5-ethylthieno[2,3-b]thiophene. Starting from hetaryl acetic acids gave 3-(3-hydroxy-1-oxoinden-2-yl)benzo[b]fura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6eeb51841ff723894a9a5375d11f462
https://doi.org/10.1007/s10593-005-0158-8
https://doi.org/10.1007/s10593-005-0158-8
Publikováno v:
Chemistry of Heterocyclic Compounds. 40:1427-1434
The isomerization of 9-propargylcarbazole in alcoholic alkali leads to the product of dimerization of 9-allenylcarbazole, 1,2-bis(9-carbazolylmethylene)cyclobutane, the structure of which was established by X-ray diffraction analysis.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::039ac86acfde07bb656f00ac04317302
https://doi.org/10.1007/s10593-005-0059-x
https://doi.org/10.1007/s10593-005-0059-x
Publikováno v:
Chemistry of Heterocyclic Compounds. 40:1082-1086
We have studied the reactions of benzothieno[2,3-c]pyrylium salts with primary amines. We have shown that recyclization occurs in two directions, and whether benzothieno[2,3-c]pyridinium salts or 1-aminodibenzothiophenes are formed is determined by t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7472d1a69ecef85cae762a9a9ada290
https://doi.org/10.1023/b:cohc.0000046701.26688.cb
https://doi.org/10.1023/b:cohc.0000046701.26688.cb
Publikováno v:
Chemistry of Heterocyclic Compounds. 40:481-489
The acylation of benzo[b]furan-, benzo[b]thiophene, and indolyl-3-acetic acid arylamides using acetic anhydride in the presence of 70% perchloric acid occurs at the α-position of the heterocycle to give 2-acetylbenzo[b]furan-, 2-acetylbenzo[b]thioph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eeaabb7a2908814836b7f0ccf8f4045c
https://doi.org/10.1023/b:cohc.0000033542.86752.27
https://doi.org/10.1023/b:cohc.0000033542.86752.27
Publikováno v:
Chemistry of Heterocyclic Compounds. 40:58-64
Oximes of 3-ethoxycarbonyl-4-halo(methoxy)phenyl-2,7,7-trimethyl-5-oxo-5,6,7,8-tetrahydroquinolines are converted in polyphosphoric acid (PPA) into 3'-ethoxycarbonyl-4',7',7'-trimethyl-4-oxo-2',6',7',8'-tetrahydrospiro(cyclohexa-2,5-diene-1,2'-pyrrol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a6f177c019dd4c3a40ee392c7527716
https://doi.org/10.1023/b:cohc.0000023768.66484.d5
https://doi.org/10.1023/b:cohc.0000023768.66484.d5
Publikováno v:
Chemistry of Heterocyclic Compounds. 39:1627-1632
Transformations of oximes of 4-aryl-2,7,7-trimethyl-5-oxo-5,6,7,8-tetrahydroquinolines in PPA have been studied. It is shown that the reaction, depending on substituent at position 4 of quinoline ring, can occur in three directions: aromatization of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5c42aff561b82d0f24ca7beb4e292c2
https://doi.org/10.1023/b:cohc.0000018341.97883.c0
https://doi.org/10.1023/b:cohc.0000018341.97883.c0
Autor:
S. V. Naletov, E. A. Beletskii, V. N. Voshchula, S. N. Lyashchuk, V. I. Dulenko, K. M. Khabarov
Publikováno v:
Pharmaceutical Chemistry Journal. 31:482-487
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65ed26c7a21fab34867a6bb5c4d81e7d
https://doi.org/10.1007/bf02464309
https://doi.org/10.1007/bf02464309
Publikováno v:
Chemistry of Heterocyclic Compounds. 33:1043-1046
The site of electrophilic substitution in benzo[b]thieno- and benzo[b]furo[2,3-c]pyridines has been determined using the nuclear Overhauser effect and by a method based on the difference in reactivity of the isomeric products.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1574c054142a112978da911083ded938
https://doi.org/10.1007/bf02253218
https://doi.org/10.1007/bf02253218
Publikováno v:
Chemistry of Heterocyclic Compounds. 33:346-351
The nitration products of benzo[b]thieno[2,3-c]pyridines were used in the synthesis of new fused tetracyclic heterocyclic systems, which are structural analogs of natural ellipticine and olivicine alkaloids. Closure of the pyridine ring gives product
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c64123d3978df58ce6d5f3d70101eaad
https://doi.org/10.1007/bf02253117
https://doi.org/10.1007/bf02253117